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TLS Online TPP Program

#Question id: 5029

Which of the following was the least likely factor causing the Cambrian explosion?

#Unit 11. Evolution and Behavior

  1. the emergence of predator-prey relationships between animals

  2. the accumulation of diverse adaptations, such as shells and different modes of locomotion

  3. the movement of animals onto land

  4. the evolution of Hox genes that controlled development

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TLS Online TPP Program

#Question id: 5655

#Unit 5. Developmental Biology

What is the "acrosomal reaction"?
TLS Online TPP Program

#Question id: 15908

#Unit 5. Developmental Biology

Sex-lethal, transformer, and doublesex are all part of the genetic cascade of:
TLS Online TPP Program

#Question id: 9256

#Unit 9. Diversity of Life Forms

Which of the following areas of study focuses on the exchange of energy, organisms, and materials between ecosystems?
TLS Online TPP Program

#Question id: 23986

#General Aptitude

Suppose a child is devoid of social efficiency then what measures will you adopt to overcome this difficulty?
TLS Online TPP Program

#Question id: 5445

#Unit 8. Inheritance Biology

A plant height in Maize is control by 3 pair of polygene .Two varieties of maize averaging 120 and 60 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 90 inches in height. What is percent of F2 progeny that is resemble with either 120 cm or 60 cm height?